UK law change from 2027 will leave millions with a mortgage £5,000 better off Housebuilders will be legally required to install solar panels on the roofs of new properties by 2027 under the plans. Housebuilders will be legally required to install solar panels on the roofs of new properties by 2027 under the plans. A UK law change from 2027 will add £4,000 to property prices in a huge boost for UK sellers. Housebuilders will be legally required to install solar panels on the roofs of new properties by 2027 under the plans. The policy is estimated to add between £3,000 and £4,000 to building a home but homeowners would save more than £1,000 on their annual energy bills, according to the Times. It means those selling a house could be £5,000 better off. ‌ Former Labour Party prime minister Tony Blair has criticised the government's climate policy. He argued that the public was being asked to make “financial sacrifices and changes in lifestyle” that would have “minimal” effect on global emissions. ‌ READ MORE 39 counties in England at risk of 'power cuts' in 29C UK heatwave He said the drive to phase out fossil fuels in the short term was “doomed to fail” because their production and demand were rising. Unite general secretary, Sharon Graham, said workers should not be thrown “on the scrapheap” in the pursuit of net zero. Article continues below Graham said: “The problem is that the jobs part of this is not being discussed.” Graham said: “Workers want net zero, my members have no problem with net zero. The problem that we’ve got is that there is no investment currently about how we get to that and also secure jobs. “There hasn’t been one single thing done so far that I can see in terms of investments on wind manufacture, in terms of investments into areas like sustainable air fuel … all of those things have not happened, and you cannot just plough on regardless and throw all of these workers on the scrapheap.” Lily-Rose Ellis, Greenpeace UK’s climate campaigner, said: “For too long we’ve wasted the free energy that falls on the roofs of houses every single day. Now, people living in new-build homes will save hundreds of pounds every year on their energy bills, thanks to this commonsense decision from the government.” Article continues below A government spokesperson said: “We have always been clear that we want solar panels on as many new homes as possible because they are a vital technology to help cut bills for families, boost our national energy security and help deliver net zero. “Through the Future Homes Standard we plan to maximise the installation of solar panels on new homes as part of our ambition to ensure all new homes are energy efficient, and will set out final plans in due course.”